Jihadi John tells terrorists to wage war on UK streets

Jihadi John tells terrorists to wage war on UK streets

MONSTER: Barbaric Jihadi John is raging over air strikes in Syria [AFP•GETTY•SWNS]

The Isis executioner, who has been unmasked as British national Mohammed Emwazi, has sent dozens of secret messages to Islamic State supporters.

He urges them to carry out attacks in revenge for RAF strikes in Syria. In one encrypted message he calls on fellow Muslims to make Britain pay for killing “brothers” in Syria.

In another, the killer – who was filmed beheading hostages including Brits Alan Henning and David Haines – uses the phrase “behead the infidel”.

The messages were intercepted by codebreakers who hacked into encrypted emails at the Government’s eavesdropping base GCHQ. Spy chiefs say they suggest UK-based terrorist cells will attempt a “spectacular” attack in the next few months.

MI5 boss Andrew Parker recently briefed the Prime Minister on the imminent threat which led to last week’s clampdown on home-grown extremists who pose a threat to the UK.

BUSTED: The messages were intercepted at GCHQ [REUTERS]

“There are around 2,000 jihadis in the UK”

An intelligence expert

The chief spook warned David Cameron an Isis attack on a major city was “effectively inevitable”.

Intelligence experts told members of the National Security Council that Britain is now a prime target.

One source said last night: “There are around 2,000 jihadis in the UK. Many of those have been members of Islamic State and have fought in Iraq and Syria.

They have come back and now pose a serious threat. “The problem for MI5 is that many jihadists have returned to the UK and have gone off the grid.

We know there are covert cells in the UK but we don’t know where they are based, who the members are or what they are planning to do.”

MI5 told senior ministers the “backwash” of jihadis returning to the UK from Syria presented a “real and present danger” to security.

One source said: “Dozens, possibly hundreds, of young men and women have returned to the UK after fighting in Iraq and Syria.

"They have been brutalised by a very bloody war.

“Some will just want to return to their old lives but others will want to bring Isis terror to the UK.

Some of these people will disappear and the next time they surface will be as part of a terror plot.”

Intelligence chiefs say worldwide Isis-inspired atrocities show the group is capable of co-ordinating attacks.

Last week 40 civilians from a minority Muslim group were executed by members of Isis in Pakistan.

And Isis extremists are fighting alongside the Taliban in Afghanistan. Attacks in Saudi Arabia and Tunisia in March were blamed on Isis fighters.